e80171d57c
This commit improves efficiency in FastPathTransferRelationLocks() and GetLockConflicts(), which iterate over PGPROCs to search for fast-path locks. Previously, these functions recalculated the fast-path group during every loop iteration, even though it remained constant. This update optimizes the process by calculating the group once and reusing it throughout the loop. The functions also now skip empty fast-path groups, avoiding unnecessary scans of their slots. Additionally, groups belonging to inactive backends (with pid=0) are always empty, so checking the group is sufficient to bypass these backends, further enhancing performance. Author: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi> Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Discussion: https://postgr.es/m/07d5fd6a-71f1-4ce8-8602-4cc6883f4bd1@oss.nttdata.com |
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| configure | ||
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| COPYRIGHT | ||
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PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.